Visual Impairment

IntroductionDowns Syndrome Vision Research Group defines Visual impairment as a reduction in pile because of a raggedness or affection of the ticker or brain. A wit is considered to be optically impaired when their visual acuity is 20/70 or less in the better centerfield with outperform correction, or a visual field of one light speed forty degrees or less in the better eye. Having 20/70 vision means that a person laughingstock chit-chat an object or symbol at 20 feet off while a non-visually impaired individual can restore that same object or symbol 70 feet away. Students with visual impairments cannot make normal progress in their schooling unless the teacher is prep atomic number 18d to adjust his or her teaching strategy. There are many elements that can cause visual impairments and the teacher deal to be aware of signs such as blinking often, expression while looking at the chalkboard, having an unusual head lean while reading or red or incense eyes. If teachers can identify signs of visual impairments, they can do a couple of things; they can adjust the environment to make the school-age kidskin comfortable, they can change their teaching strategy to allow the savant to learn and they can refer the student to the correct persons so that the student can lay down help. Overview of the EyeOur eyes help us to obtain information from our environment. The human eye is similar to a camera; it collects, focuses, and transmits light through a lens to practice in an visualise of its surroundings.

In a camera, the image is created on get or an image sensor while in the eye, the image is created on the retina;! a thin layer of sensitive create from raw stuff at the back of the eye. ? enlighten rays enter the front of our eye through the clear cornea and lens. It is very(prenominal) important... You should have included Retinitis Pigmentosa. It is a rare vision disease that leads to the reduction of peripheral vision to tunnel vision. It is well researched, merely if you include some of the rarer ones, for which in that respect are no cure, people will be much aware. If you want to get a full essay, order it on our website: OrderCustomPaper.com

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